TY  - JOUR
AU  - V. Ya. Stetsenko
TI  - On a method for estimating the spectrum of linear operator
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1964
VL  - 19
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1964_19_2_a15/
LA  - ru
ID  - RM_1964_19_2_a15
ER  -